libcryfs/test/implementations/ondisk/OnDiskBlockTest/OnDiskBlockCreateTest.cpp

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#include "../../../../implementations/ondisk/FileAlreadyExistsException.h"
#include "../../../../implementations/ondisk/OnDiskBlock.h"
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#include "google/gtest/gtest.h"
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#include "messmer/tempfile/src/TempFile.h"
#include "messmer/tempfile/src/TempDir.h"
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using ::testing::Test;
using ::testing::WithParamInterface;
using ::testing::Values;
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using tempfile::TempFile;
using tempfile::TempDir;
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using std::unique_ptr;
using namespace blockstore;
using namespace blockstore::ondisk;
namespace bf = boost::filesystem;
class OnDiskBlockCreateTest: public Test {
public:
OnDiskBlockCreateTest()
// Don't create the temp file yet (therefore pass false to the TempFile constructor)
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: dir(),
key(Key::FromString("1491BB4932A389EE14BC7090AC772972")),
file(dir.path() / key.ToString(), false) {
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}
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TempDir dir;
Key key;
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TempFile file;
};
TEST_F(OnDiskBlockCreateTest, CreatingBlockCreatesFile) {
EXPECT_FALSE(bf::exists(file.path()));
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auto block = OnDiskBlock::CreateOnDisk(dir.path(), key, 0);
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EXPECT_TRUE(bf::exists(file.path()));
EXPECT_TRUE(bf::is_regular_file(file.path()));
}
TEST_F(OnDiskBlockCreateTest, CreatingExistingBlockReturnsNull) {
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auto block1 = OnDiskBlock::CreateOnDisk(dir.path(), key, 0);
auto block2 = OnDiskBlock::CreateOnDisk(dir.path(), key, 0);
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EXPECT_TRUE((bool)block1);
EXPECT_FALSE((bool)block2);
}
class OnDiskBlockCreateSizeTest: public OnDiskBlockCreateTest, public WithParamInterface<size_t> {
public:
unique_ptr<OnDiskBlock> block;
Data ZEROES;
OnDiskBlockCreateSizeTest():
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block(OnDiskBlock::CreateOnDisk(dir.path(), key, GetParam())),
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ZEROES(block->size())
{
ZEROES.FillWithZeroes();
}
};
INSTANTIATE_TEST_CASE_P(OnDiskBlockCreateSizeTest, OnDiskBlockCreateSizeTest, Values(0, 1, 5, 1024, 10*1024*1024));
TEST_P(OnDiskBlockCreateSizeTest, OnDiskSizeIsCorrect) {
Data fileContent = Data::LoadFromFile(file.path());
EXPECT_EQ(GetParam(), fileContent.size());
}
TEST_P(OnDiskBlockCreateSizeTest, OnDiskBlockIsZeroedOut) {
Data fileContent = Data::LoadFromFile(file.path());
EXPECT_EQ(0, std::memcmp(ZEROES.data(), fileContent.data(), fileContent.size()));
}
// This test is also tested by OnDiskBlockStoreTest, but there the block is created using the BlockStore interface.
// Here, we create it using OnDiskBlock::CreateOnDisk()
TEST_P(OnDiskBlockCreateSizeTest, InMemorySizeIsCorrect) {
EXPECT_EQ(GetParam(), block->size());
}
// This test is also tested by OnDiskBlockStoreTest, but there the block is created using the BlockStore interface.
// Here, we create it using OnDiskBlock::CreateOnDisk()
TEST_P(OnDiskBlockCreateSizeTest, InMemoryBlockIsZeroedOut) {
EXPECT_EQ(0, std::memcmp(ZEROES.data(), block->data(), block->size()));
}